271
WWUS76 KLOX 211848
NPWLOX
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1148 AM PDT SUN JUN 21 2026
CAZ088-372-373-379-380-548-260400-
/O.UPG.KLOX.XH.A.0002.260623T1500Z-260626T0400Z/
/O.NEW.KLOX.HT.Y.0007.260623T1500Z-260626T0400Z/
SANTA CLARITA VALLEY-WESTERN SAN FERNANDO VALLEY-EASTERN SAN
FERNANDO VALLEY-WESTERN SAN GABRIEL MOUNTAINS AND HIGHWAY
14 CORRIDOR-EASTERN SAN GABRIEL MOUNTAINS-LOS ANGELES COUNTY SAN
GABRIEL VALLEY-
INCLUDING THE CITIES OF POMONA, NEWHALL, BURBANK, MOUNT WILSON,
LA CANADA FLINTRIDGE, SUNLAND, PASADENA, VAN NUYS, VALENCIA, WARM
SPRINGS, NORTHRIDGE, EL MONTE, MILL CREEK, GLENDALE, EAST LOS
ANGELES, WRIGHTWOOD, UNIVERSAL CITY, ACTON, SAN GABRIEL, THE
ANGELES CREST HIGHWAY, MOUNT BALDY, WOODLAND HILLS, CHATSWORTH,
LAKE CASTAIC, AND SANTA CLARITA
1148 AM PDT SUN JUN 21 2026
..HEAT ADVISORY IN EFFECT FROM 8 AM TUESDAY TO 9 PM PDT THURSDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH TEMPERATURES UP TO THE
MIDDLE TO UPPER 90S POSSIBLE. HOTTEST WEDNESDAY.
* WHERE...EASTERN SAN FERNANDO VALLEY, EASTERN SAN GABRIEL
MOUNTAINS, LOS ANGELES COUNTY SAN GABRIEL VALLEY, SANTA CLARITA
VALLEY, WESTERN SAN FERNANDO VALLEY, AND WESTERN SAN GABRIEL
MOUNTAINS AND HIGHWAY 14 CORRIDOR.
* WHEN...FROM 8 AM TUESDAY TO 9 PM PDT THURSDAY.
* IMPACTS...THERE IS A HIGH RISK FOR HEAT ILLNESS FOR SENSITIVE
POPULATIONS INCLUDING THE VERY YOUNG, THE VERY OLD, THOSE WITHOUT
AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...HIGHER HUMIDITY WILL HAVE THE POTENTIAL TO
ADD TO THE HEAT DISCOMFORT IN THE AFTERNOONS. TEMPERATURES ARE
EXPECTED TO COOL SLIGHTLY AFTER THURSDAY BUT WILL REMAIN WELL
ABOVE NORMAL THROUGH THE WEEKEND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
CAZ368-260400-
/O.UPG.KLOX.XH.A.0002.260623T1500Z-260626T0400Z/
/O.NEW.KLOX.HT.Y.0007.260623T1500Z-260626T0400Z/
LOS ANGELES COUNTY INLAND COAST INCLUDING DOWNTOWN LOS ANGELES-
INCLUDING THE CITIES OF CULVER CITY, HOLLYWOOD, NORWALK, DOWNEY,
BEVERLY HILLS, AND COMPTON
1148 AM PDT SUN JUN 21 2026
..HEAT ADVISORY IN EFFECT FROM 8 AM TUESDAY TO 9 PM PDT THURSDAY
* WHAT...UNSEASONABLY HOT CONDITIONS WITH TEMPERATURES UP TO THE MID
TO UPPER 80S POSSIBLE IN DOWNTOWN LOS ANGELES AND THE LOW 80S IN
INGLEWOOD. HOTTEST WEDNESDAY.
* WHERE...LOS ANGELES COUNTY INLAND COAST INCLUDING DOWNTOWN LOS
ANGELES.
* WHEN...FROM 8 AM TUESDAY TO 9 PM PDT THURSDAY.
* IMPACTS...THERE IS A HIGH RISK FOR HEAT ILLNESS FOR SENSITIVE
POPULATIONS INCLUDING THE VERY YOUNG, THE VERY OLD, THOSE WITHOUT
AIR CONDITIONING, AND THOSE ACTIVE OUTDOORS.
* ADDITIONAL DETAILS...HIGHER HUMIDITY WILL HAVE THE POTENTIAL TO
ADD TO THE HEAT DISCOMFORT IN THE AFTERNOONS. TEMPERATURES ARE
EXPECTED TO COOL SLIGHTLY AFTER THURSDAY BUT WILL REMAIN ABOVE
NORMAL INTO NEXT WEEKEND.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DRINK PLENTY OF FLUIDS, STAY IN AN AIR-CONDITIONED ROOM, STAY OUT OF
THE SUN, AND CHECK UP ON RELATIVES AND NEIGHBORS.
TAKE EXTRA PRECAUTIONS WHEN OUTSIDE. WEAR LIGHTWEIGHT AND LOOSE
FITTING CLOTHING. TRY TO LIMIT STRENUOUS ACTIVITIES TO EARLY MORNING
OR EVENING. TAKE ACTION WHEN YOU SEE SYMPTOMS OF HEAT EXHAUSTION AND
HEAT STROKE.
VISIT US AT HTTP://WWW.WEATHER.GOV/LOSANGELES
NWS LOS ANGELES/OXNARD
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